How many species of plants are there in Yunnan Province, the province with the largest number of plant species in China, please give detailed examples?

Yunnan has almost concentrated plant species from tropical and subtropical to temperate and even frigid zones. Of the 30,000 species of higher plants in China, 274 families, 2,076 genera and 17,000 species have been found in Yunnan. Yunnan Province, known as the "Kingdom of Plants", is rich in plant species, with about 10,000 species (half of the country's total) distributed at different altitudes and under different climatic conditions in the province. Many of them are resource plants with economic value. Yunnan camphor tree, wood ginger, lemongrass, Lovage, Panax quinquefolius, ox horn gourd, antler vine, Dioscorea opposita, ironwood, oil dregs of fruit ......, etc., are all famous economic plants produced in Yunnan Province. Since the liberation of the country, the Kunming Institute of Botany, under the leadership and care of the Party, has carried out some preliminary investigation and research work in the exploration of wild plant resources. Especially in 1958, the Great Leap Forward of the whole people, with the collaboration of relevant units inside and outside the province to organize a large-scale census team, the province's wild plant resources census work. Census work under the leadership of the Party and the strong support of the masses around, is a great achievement. According to the information of previous surveys, it is estimated that there are about 700 species of useful plants in the wild in our province. Among them, there are plants containing aromatic oils, grease-containing plants, fiber-containing plants, starch-containing plants, tannin-containing plants, alkaloid-containing and pesticide-containing plants, as well as rubber resin-containing plants and other raw materials plants for the main items. Therefore, as far as the types and distribution of resource plants in Yunnan Province are concerned, they are inferior to those in any other provinces and regions. After these resources are developed and utilized, the economic value is also very large, and it is estimated that it can reach the equivalent of double the agricultural output value of the province. Since the State Council issued on April 7, 1958, "on the use and collection of wild plants in China raw materials," the instructions, Yunnan have been organized around the wild plants into the team; a variety of wild plant raw materials processing plant (rayon factory, lemongrass oil factory, winery, extract factory, etc.) the establishment of a spring. In the mass movement for the vigorous development and utilization of wild plants, the masses everywhere proposed: "War on wild plants!" "To the deep forests for food, cotton and oil!" "Pick what grows on the trees and dig up what is buried underground!" and other bold slogans. In the big wild plant processing production, at the same time emerged a lot of "soil experts, living God farmers", created a lot of local processing and improve the yield and quality of the method. In the past year, the development and utilization of wild plant resources throughout the province has made great achievements, not only creating wealth for the country, but also accumulating rich experience for the further and larger-scale utilization of these resources in the future. In the production of utilizing wild plants in different parts of the province, due to the lack of technical experience and equipment, as well as the supply of raw materials is not established on a reliable basis, so the production process has also occurred a lot of problems. For example, in 1958, the production of wood ginger oil in various places, due to the raw material purchase buyers do not do a good job, some counties only complete the original plan of 10% of the amount of weak. General processing plant production of finished products of low quality (such as the production of ginger oil is black, artificial cotton can not weave cloth), and production costs are high (such as Wenshan, each processing 1 kilogram of artificial cotton costs and 1 kilogram of ordinary cotton is almost the same), so that the product marketing problems occur. The more common problem is the lack of integrated processing and utilization of wild plants, resulting in a great waste. Such as wood ginger steamed aromatic oil, the steamed seeds as waste disposal, and seeds within the 33% of vegetable oil can be extracted for industrial oil. Another example is the plantain taro in the south of Yunnan a lot of cultivation, generally only take the root for starch, taro pole as waste disposal. We found this problem, in Xichou County, a comprehensive utilization of the site processing test, the results proved that plantain taro pole is a very good raw material for artificial cotton, per 100 kg of cotton can be 17 kg, the yield of a large number of acquisitions than the current Longxu grass for the better. The production of a series of technical problems that occur, for our resources botanists put forward a variety of new topics. How to expand the scope and variety of utilization of wild plant resources? How to rationally develop different kinds of plants in different zones? How to turn wild plants scattered all over the mountains into domestic cultivation? How to stabilize production and facilitate harvesting? And how to rationally process and utilize them to increase their production value? It has become an urgent task for our scientists.